Config generator

[devth]

e.g. Telegraf config

Generate config with docs from specs:

• sample.env
• profiles.sample.clj
• config.sample.edn

Generate:

• Documentation config table

Generate:

• Config validator CLJS utility

Should include docs, default values, whether or not it's required.

[devth]

If we switch to cloure.spec (https://github.com/devth/yetibot/issues/576) we get support for config generation.